Frederick County
Public Schools has installed a TowerMate Treatment system at two
elementary schools. The two schools are REDBUD RUN ELEMENTARY (1996) and
STONEWALL ELEMENTARY (1997). The sizes of the buildings are
approximately 70,000 sq. ft. each. The schools have similar mechanical
systems. The mechanical systems are made up of approximately 75
water source heat pumps which are connected to a condenser water
loop. In series with the condenser loop is a water to water heat
exchanger for cooling the loop and two hot water boilers for adding heat
to the loop.

The heat exchanger
is also connected to a fiberglass cooling tower which is used to extract
heat from the loop during warm weather conditions. The tower normally
operates from April through October with a reduced operation in the
summer months when school is closed during July and August.

Corrosion, scale
and biological growth are controlled in the cooling tower and heat
exchanger with the use of a TowerMate System. The system modifies water
by flowing it through strong magnetic fields, ionization electrodes, and
a centrifugal separator. No chemicals are added to the system and bleed
is eliminated. The pump has sealed bearings and requires no Maintenance.

To date the systems
have functioned very well with only normal Maintenance required. The
cooling tower and heat exchanger at Redbud Run have been disassembled
once for cleaning and Stonewall has not required any cleaning to date.
Normal cleaning needs to be performed annually in our school systems
that currently use chemicals.

The use of the
TowerMate Systems has produced an operational savings by:

1. No purchase
of chemicals or chemical injection equipment. The chance of a
chemical pump malfunctioning and not properly treating the
water or pumping valuable chemicals down the drain is eliminated.